CLASSIFICATION OF PLANTS. 163 



omous Analysis. Let the student take any plant, after having 

 studied the First Part, and he can find no difficulty in using 

 either. In many cases we have appended to terras, not in com- 

 mon use, the number of the paragraph where the explanation 

 of the term will be found. After the name of each genus we 

 have put the number indicating the Linnsean Class and Order. 



318. In the practical part of Botany, there are certain arti- 

 cles necessary to the student. The most important are the fol- 

 lowing : a pocket microscope, with forceps, a sharp knife, and 

 several sharp pins or needles. He wants his knife to cut and 

 dissect objects of observation, and his needle to raise up, separ- 

 ate, and fix portions for examination : his forceps to hold small 

 objects steady for observation, and with freedom of motion, that 

 they may be viewed in every position. For the analysis of 

 plants the above will be all that is essential. If the elementary 

 tissues are to be examined, or the contents of the pollen, or the 

 circulation in the cells, or the starch grains, a good compound 

 microscope must be at command. 



319. To collect plants, the student wants a tin box, cylindrical 

 or flattened, as may be desired, 18 inches long, and from 5 to 8 

 inches in diameter. If it is large, it is better to be flattened, 

 the ends being oval — five inches in their shortest diameter and 

 eight inches for the longest. There should be a large opening 

 on the side least curved, extending nearly the whole length of 

 the box, and the lid be made to fit as closely as possible. 

 Two rings should be attached to the ends, or on one side, to 

 receive a strap, by which it may be carried, putting the strap 

 over the shoulder. Plants will remain in such a box or vascu- 

 lum many hours without wilting, and even days by sprinkling 

 a very .little water on them. 



In collecting plants, the whole of a plant should be gath- 

 ered when it can be. When the plant is too large for this, 

 leaves should be taken from the bottom, middle, and top of the 

 stem. The root and ripe fruit should always be gathered when 

 possible, and if too large to be otherwise preserved, should be 

 labeled and placed on shelves. « 



A stiff-covered blank-book, with a strap round it, with a buckle, 

 is always convenient to put up delicate plants in, and those flow- 

 ers which might be injured in the box, or which fall off as soon 

 as expanded. 



320. To preserve the plants after they are collected, requires 

 no little labor and care. This the student must meet promptly 

 and fully, if he expects to accomplish any thing useful. A little 

 perseverance accomplishes all, and no labor is better rewarded. 



Take two pieces of stiff plank, of the size of the paper to be used, 



